About Kitty Sift
Kitty Sift was founded by Carrie Van Wert after she began volunteering at her local Animal Humane Society and noticed how many cats were surrendered over what shelters logged as 'litter box issues.' She set out to build a disposable alternative aimed at removing one of the most common triggers for relinquishment: a soiled, hard-to-clean box. The core product is a disposable litter box made from 100% post-consumer recycled cardboard — biodegradable, plastic-free, and designed to be tossed rather than scrubbed and disinfected, which matters most for travel, fostering, quarantine, and post-surgical cat care.
The line has grown to include a sifting-liner kit, available in Large and Jumbo sizes, that lets an owner lift, rotate, and stack trays instead of scooping, plus standalone liner refills and a probiotic clay litter. Kitty Sift is sold through Amazon, PetSmart, Target, Petco, Walmart, and The Grommet, and has drawn independent veterinary endorsement — Dr. Angelica Dimock, DVM, called it "an ingenious product" for promoting proper litter-box hygiene, and outlets like Cats.com have reviewed the line directly, rating its eco-friendly materials and value highly.
Brand website: kittysift.com
What Kitty Sift makes
Kitty Sift's range runs wider than the products we review. The lines we know best from our own testing are marked with a star:
Disposable Litter Box (Large, 6-Count)
the sturdy recycled-paperboard box we feature — a fresh box to toss instead of scrub — featured on House of Mittens
Disposable Sifting Litter Box Kit
one box plus 5 sifting liners for a lift-and-rotate, no-scoop system
Jumbo Sifting Litter Box Kit
a larger-capacity version of the sifting kit for bigger cats or multi-cat use
Sifting Liner Refills
standalone replacement liners for the sifting kit
Probiotic Cat Litter
a sodium bentonite clay litter blended with probiotics for odor control
Why we recognized Kitty Sift
The House of Mittens Top Brand recognition isn't paid for and can't be applied for. We award it to the brands whose products consistently stand out in our vet-reviewed category guides. Kitty Sift earned it on the strength of the products below, evaluated the same way every product on this site is: assessed against feline-health criteria, used with real cats, and judged on merit.
Kitty Sift products we rated highly
Kitty Sift Disposable Cat Litter Box (Large, 6-Count)
The box we recommend for travel, fostering, a new-cat quarantine, or post-surgical isolation — sturdy recycled paperboard construction means you toss the whole box instead of scrubbing and disinfecting a contaminated plastic one. A six-pack gives weeks of use and doubles as a handy backup for a second bathroom, an RV, or a cat sitter.
Read the 10 Best Cat Litter Boxes of 2026 guide →What earned Kitty Sift the recognition
- Our top disposable and travel litter box recommendation in our reviews, the category we recommend most for fostering, quarantine, and post-surgical cat care.
- Made from 100% post-consumer recycled cardboard, giving cat owners a genuinely biodegradable, plastic-free alternative to washing a contaminated plastic pan.
- Founded by Carrie Van Wert after she saw firsthand, volunteering at her local Animal Humane Society, how often litter-box problems led to cat surrenders — the brand's entire premise is removing that friction.
- Backed by independent veterinary endorsement, including Dr. Angelica Dimock, DVM, who called it 'an ingenious product' for promoting proper litter-box hygiene.
- Sold nationally through Amazon, PetSmart, Target, Petco, Walmart, and The Grommet, with independent coverage from outlets like Cats.com.